Any D&D geeks out there know where I can find first edition and/or second edition basic rulebook downloads?

I have a friend in Europe who wants to play the D&D we played 30 years ago when we were kids. He’s not interested in the intricate rules of 3.5 or 4.0, he’s just wants the basic AD&D rulebooks. Anybody know of any sources? I couldn’t find it on my initial Google searches—they were either dead links or suspect download sites.